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#include "src/tint/lang/core/ir/multi_in_block.h"

#include "src/tint/lang/core/ir/block_param.h"
#include "src/tint/lang/core/ir/clone_context.h"
#include "src/tint/lang/core/ir/module.h"
#include "src/tint/utils/containers/predicates.h"
#include "src/tint/utils/ice/ice.h"

TINT_INSTANTIATE_TYPEINFO(tint::core::ir::MultiInBlock);

namespace tint::core::ir {

MultiInBlock::MultiInBlock() : Base() {}

MultiInBlock::~MultiInBlock() = default;

MultiInBlock* MultiInBlock::Clone(CloneContext&) {
    TINT_UNREACHABLE() << "blocks must be cloned with CloneInto";
}

void MultiInBlock::CloneInto(CloneContext& ctx, Block* out) {
    TINT_ASSERT(out->Is<MultiInBlock>());

    auto new_params = ctx.Clone(params_);
    out->As<MultiInBlock>()->SetParams(new_params);
    Block::CloneInto(ctx, out);
}

void MultiInBlock::SetParams(VectorRef<BlockParam*> params) {
    for (auto* param : params_) {
        param->SetBlock(nullptr);
    }
    params_ = std::move(params);
    TINT_ASSERT(!params_.Any(IsNull));
    for (auto* param : params_) {
        param->SetBlock(this);
    }
}

void MultiInBlock::SetParams(std::initializer_list<BlockParam*> params) {
    for (auto* param : params_) {
        param->SetBlock(nullptr);
    }
    params_ = std::move(params);
    TINT_ASSERT(!params_.Any(IsNull));
    for (auto* param : params_) {
        param->SetBlock(this);
    }
}

void MultiInBlock::AddInboundSiblingBranch(ir::Terminator* node) {
    TINT_ASSERT(node != nullptr);
    inbound_sibling_branches_.Push(node);
}

void MultiInBlock::RemoveInboundSiblingBranch(ir::Terminator* node) {
    TINT_ASSERT(node != nullptr);
    inbound_sibling_branches_.EraseIf([node](ir::Terminator* i) { return i == node; });
}

}  // namespace tint::core::ir
